Bruce Akitt
FlashCards por , criado more than 1 year ago

Practice to develop automatic recall of multiplication families involving multiplication by 9. This involves recall of the sentences such as 9 x 3 = __ , ___ x 3 = 27, 9 x __ = 27, or 3 x 9 = ___.

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Bruce Akitt
Criado por Bruce Akitt quase 11 anos atrás
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